I've just installed Ubuntu 13.04 and I think I may have issues with the graphic card.
Its fan is just running very fast (and noisy).
I tried to check the temperature using sensors and got the following:

IIUC - the temperature is 113.0C is this a normal temperature? Is this why the fan is running fast? Until yesterday I had Windows 7 on this same machine and I haven't had any problems with the GPU fan.
Might be a drivers issue, I tried to install the driver for AMD/ATI web site and failed (something about required packages missing - checked the logs to see what is missing and found out it is installed).
I'd appreciate any help here.

2 Answers
2

Usually, the overheating problem in Ubuntu is related to the graphic
card, and in your case, you have an Hybrid graphic card with the open
source drivers. In this case, by default, you have both graphic cards
connected but you are only using the integrated (Intel). If you want
to use only one and when you want, you need to install the privative
drivers following this answer:

The problem is that the latest stable driver from AMD is not compatible with the last version of Ubuntu with the latest version of the Xorg Server. Download the latest beta driver which is compatible with Ubuntu 13.04:

As I have found out (4850 here), you can't via any method install
fglrx-legacy on stock ubuntu 12.10, even if you use catalyst 12.6
which supports our cards, because the x server that 12.10 uses (1.13)
is not supported by catalyst 12.6 or older.